1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/applications/science/electronics/tkgate/1.x.nix b/pkgs/applications/science/electronics/tkgate/1.x.nix
index 1feac0b31c1..30e882a7f38 100644
--- a/pkgs/applications/science/electronics/tkgate/1.x.nix
+++ b/pkgs/applications/science/electronics/tkgate/1.x.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Event driven digital circuit simulator with a TCL/TK-based graphical editor";
     homepage = "http://www.tkgate.org/";
-    license = "GPLv2+";
+    license = stdenv.lib.licenses.gpl2Plus;
     maintainers = [ stdenv.lib.maintainers.simons ];
     hydraPlatforms = stdenv.lib.platforms.linux;
   };